Free introductory physics homework help step by step from qualified mentors. Algebra and calculus based general physics homework. High school and undergraduate level.
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Calculating e/m Ratio: A Puzzling Problem
- barcelonaboy
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Finding charge magnitude when weight is balanced by electrostatic force
- dasblack
- · Replies 2 ·
Simple Harmonic Motion General Formula
- Haths
- · Replies 2 ·
Physics 12 Journal help, please
- LoriAnn
- · Replies 1 ·
Elliptical Orbit Question with no numbers
- vasilicus
- · Replies 9 ·
Finding Speed and Volume Flow Rate in a Constricted Pipe
- xray2golf
- · Replies 6 ·
How Have Large Vehicles Been Modified for Better Aerodynamics?
- lego indy
- · Replies 1 ·
How Does Optics and Wave Interactions Affect Image Formation and Light Behavior?
- befree9
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Forces of gravity on protons and electrons
- footballxpaul
- · Replies 23 ·
Finding individual masses from total mass and gravitational force
- cougarsoccer
- · Replies 5 ·
Lorentz Contraction and Chalk Guns
- montreal1775
- · Replies 6 ·
Initial temperature of forging quenched in oil and rock dropped in water
- Candycane2388
- · Replies 1 ·
Work Done on Thermodynamic Path ABCA: 5625 J
- keemosabi
- · Replies 2 ·
Can two charged particles both be 40 nC if the field is zero between them?
- -EquinoX-
- · Replies 16 ·
Achieving an 895 km Orbit: Calculating v
- phy_
- · Replies 4 ·
Object thrown from 75 m building at 16 m/s and 25 degrees
- physicznoob
- · Replies 7 ·
Circuit Analysis: Find i, v Given R1, R2
- Xkaliber
- · Replies 3 ·
Conservation of Momentum Law- Recoil Velocity (Question)
- seeindubble12
- · Replies 1 ·
Total change in entropy, what am I doing wrong?
- asdf188
- · Replies 7 ·
Find the acceleration of the box.
- rickylin89
- · Replies 14 ·
How Do You Derive the Compton Equation?
- latitude
- · Replies 1 ·
Fluid Question and density tension etc.
- amaris
- · Replies 1 ·
Find The Angle of The Electron; Motion of Charges
- withthemotive
- · Replies 3 ·
What is the force on an electric dipole due to a line of charge?
- KillerZ
- · Replies 1 ·
Total change in entropy, what am I missing?
- asdf188
- · Replies 1 ·
Determine the length of the third segment
- dnp33
- · Replies 4 ·
A few problems regarding motion
- I R GOOD
- · Replies 4 ·
What Air Resistance Force Does a Car Face at 65mi/hr?
- afg_91320
- · Replies 8 ·
Easy Conservation of Energy Problem
- BioBabe91
- · Replies 3 ·
Charge enclosed in uniform electric field
- yeahhyeahyeah
- · Replies 1 ·
What is the solution for the two motion problems?
- ajenkin9
- · Replies 6 ·
Solve Centripetal Motion Problem: Find Tension & Acceleration
- rickylin89
- · Replies 11 ·
Calculating the Uncertainty of a Pool's Volume
- jumbogala
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Dont know how to word this properly, but a question on volume, flow, and psi.
- SwGts
- · Replies 1 ·
Calculate the entropy change of the water while it cools
- anubis01
- · Replies 1 ·
How much voltage is created when a magnet passes over a coil?
- U4edot
- · Replies 14 ·
Which table shape is hardest to tilt: triangular, rectangular or circular?
- flabber
- · Replies 2 ·
Final Speed of an Electron with 22kv Potential Difference?
- SCorneliusJ
- · Replies 2 ·
Solve 3D Vector Forces: F3, Alpha, Beta, Gamma
- ur5pointos2sl
- · Replies 1 ·
Temperature Change in a Radiating Sphere with Increasing Radius
- Feldoh
- · Replies 2 ·
Mechanics problem - centre of mass
- thehammer
- · Replies 1 ·
Work/Energy and Parallel Current-Carrying Conductors (Conceptual Question)
- nautikal
- · Replies 1 ·
A Sphere Oscillating in the Bottom of a Cylinder
- hbweb500
- · Replies 2 ·
Rearranging the doppler effect formula to solve for Vs
- hellokitty
- · Replies 3 ·
Minimum amount of hops for radiowave to travel from Amsterdam to Tokyo
- Shukie
- · Replies 3 ·
Charge on inner surface of conducting shell
- yeahhyeahyeah
- · Replies 10 ·
Calculating Electric Field of a Thin Rod of Length L with Total Charge Q
- KillerZ
- · Replies 9 ·
Thin lens equation with multiple lenses
- frank48
- · Replies 1 ·
Displacement Vector Homework: Magnitude & Direction
- Kitty808
- · Replies 3 ·
Kinematics in 2d, plane drops an object
- FlukeATX
- · Replies 2 ·
Mechanics - Work and Kinetic Energy question
- thehammer
- · Replies 8 ·
So, in a way, they are inverse of each other.
- viet_jon
- · Replies 2 ·
Energy in a spring system and static extension
- nokia8650
- · Replies 1 ·
Rearranging Exponential Curve Equation
- mandos
- · Replies 3 ·
Problem in physic of electric charge
- lovelycecila
- · Replies 1 ·
Sound intensity and level from a 36 W speaker at 48 m
- hellokitty
- · Replies 1 ·
Vector components in Polar Coordinate
- changazi
- · Replies 1 ·
Units in Gauss's law for total charge in box
- goldenwest
- · Replies 13 ·
Direction of electric field at point X between two charges
- -EquinoX-
- · Replies 11 ·
Determining g with a Compound Pendulum: Issues with Uncertainties
- trelek2
- · Replies 2 ·
Resolve Kinematics Problem: x, h, g
- FlukeATX
- · Replies 3 ·
Vectorial Algebra: Parallel, Perpendicular or Neither?
- sdoyle
- · Replies 1 ·
What is the weight of two suspended conducting spheres with given charges?
- Kudo Shinichi
- · Replies 11 ·
Calculating Force On A Dam, Using Pressure, Area, and other Known Values
- Beginner@Phys
- · Replies 2 ·
Electric Field Strength between Two Infinite Lines of Charge
- KillerZ
- · Replies 9 ·
How Do I Correctly Calculate Vector C Using Unit Vectors?
- J89
- · Replies 2 ·
Calculating Electric Field from a Bent Rod of Charge
- musicfairy
- · Replies 2 ·
Explaining mechanical aptitude test scenarios
- flabber
- · Replies 2 ·
How Does Pressure Affect Seawater Density at Depth?
- Beginner@Phys
- · Replies 1 ·
Average value of AC over a complete cycle is always zero
- atavistic
- · Replies 2 ·
How Does a Hard Disc Drive's Magnetic Field Affect an Electron's Motion?
- Zimtstange
- · Replies 1 ·
Pressure, force, and Area: Calculating the net Force Applied on A dam by Water
- Beginner@Phys
- · Replies 1 ·
Using the momentum of the ball to find it's original height
- deadtreforest
- · Replies 2 ·
Solve Integration Problem: a=(-2v)m/s^2, v=20m/s, s=0, t=0
- yoleven
- · Replies 3 ·
Electric Field: Deriving Equations and Understanding Charge Density
- musicfairy
- · Replies 3 ·
How Fast Must a Ball Be Kicked to Avoid Hitting a Hemispherical Rock?
- Ailo
- · Replies 18 ·
What Is the Tension in the Left Rope When a Person Sits on a Supported Beam?
- future_vet
- · Replies 4 ·
Package dropped from rising helicopter at 17m/s reaches ground in 13s
- intenzxboi
- · Replies 2 ·
Conservation of Momentum and gravity
- jcjp
- · Replies 2 ·
Speed of electron in Bohr model
- vaizard
- · Replies 6 ·
Can electromagnetic radiation be deflected by magnetic fields or charged particles?
- Precursor
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Net Electrostatic Force on particles
- Aryth
- · Replies 6 ·
What Charge Value Would Keep the Moon in Orbit by Electrical Force?
- acissej2487
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Coulombs Law, 3 charges 3 dimensions.
- Oblivion77
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Wishing Well (sound wave) problem
- becks723
- · Replies 6 ·
Is asking for homework help considered plagiarism?
- Crosshash
- · Replies 5 ·
What Is the Net Flux Through Gaussian Surfaces Near a Charged Rod?
- musicfairy
- · Replies 2 ·
Does nuclear binding energy require infinite energy to move nucleons infinitely apart?
- Precursor
- · Replies 11 ·
Electrostatic Equilibrium: Where to Place a Third Charge?
- endeavor
- · Replies 4 ·
Torque Experiment: Finding Mass 2 w/ Given Data
- tsukasazero
- · Replies 1 ·
Sketching Electric Field Lines of Circular Arc w/ Uniform Charge
- DWill
- · Replies 1 ·
Finding Velocity of a rock thrown into a well
- Cheezay
- · Replies 8 ·
What Is Rosie's Power Output When Pushing a Box?
- Yavko2510
- · Replies 2 ·
How Does Height Affect the Diameter of a Water Drop Impact?
- DizzyDoo
- · Replies 1 ·
Where Will the Car Overtake the Truck?
- mbecker19
- · Replies 6 ·
How Is Work Calculated When Pulling a Blimp with Drag and Angle Considerations?
- hganser
- · Replies 3 ·
Understanding Derivatives, velocity and acceleration
- intenzxboi
- · Replies 3 ·
Two equal ropes at 86° angle supporting 372 N weight
- J89
- · Replies 3 ·
Electric Field in a Non-symmetric Sphere (Purcell 1.16)
- r16
- · Replies 3 ·
Eng. Mechanics I Bonus question
- CJSGrailKnigh
- · Replies 25 ·